Search Results

Learners make a refrigerator that works without electricity. The pot-in-pot refrigerator works by evaporation: a layer of sand is placed between two terra cotta pots and thoroughly soaked with water.

In this three-part activity, learners use food to determine the effects of wind, sandblasting and water on regolith (dust) formation and deposition on Earth.

Learners build models of sinkholes to gain an intuitive knowledge of their physical aspects.

Learners build a filter from old soda bottles and dirt. They create polluted water, and pour it through their filter to clean it.